package com.qiang.demo01;

public class Test09 {
    public static void main(String[] args) {
        Integer integer = new Integer("123");
        System.out.println(integer);
        Integer integer1 = Integer.valueOf(120);
        System.out.println(integer1);
        Integer integer2 = Integer.valueOf("123");
        System.out.println(integer2);
    }
}
